99-98-9
Product Name:
N,N-Dimethyl-1,4-phenylenediamine
Formula:
C8H12N2
Synonyms:
N,N-Dimethyl-1,4-phenylenediamine;4-(Dimethylamino)aniline;4-Amino-N,N-dimethylaniline;DMPPDA
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Dimethyl-p-phenylenediamine is a colorless to reddish-violet solid. Used in the production of methylene blue and photographic developer. Used as a chemical intermediate for dyes and diazonium chloride salts and as an analytical reagent to detect chloroamine in water. (EPA, 1998) |
|---|---|
| Color/Form | Reddish-violet crystals |
| Boiling Point | 504 °F at 760 mmHg (EPA, 1998) |
| Melting Point | 106 to 127 °F (EPA, 1998) |
| Flash Point | 195 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 68 °F (NTP, 1992) |
| Density | 1.036 at 68 °F (EPA, 1998) - Denser than water; will sink |
| Vapor Density | 4.69 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 0.00791 [mmHg] |
| Stability/Shelf Life | Chemical stability: Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits toxic fumes of NOx. |
| Ionization Efficiency | Positive |
| Dissociation Constants | pKa = 6.59 at 25 °C (conjugate acid) |
| Kovats Retention Index | 1377 |
| Other Experimental Properties | Stable in air when pure |
| Chemical Classes | Nitrogen Compounds -> Amines, Aromatic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H331:Acute toxicity,inhalation |
| Precautionary Statement Codes |
P262:Do not get in eyes, on skin, or on clothing. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
COMPUTED DESCRIPTORS
| Molecular Weight | 136.19 g/mol |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 136.100048391 g/mol |
| Monoisotopic Mass | 136.100048391 g/mol |
| Topological Polar Surface Area | 29.3 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 93.4 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Dimethyl-p-phenylenediamine is a colorless to reddish-violet solid. Used in the production of methylene blue and photographic developer. Used as a chemical intermediate for dyes and diazonium chloride salts and as an analytical reagent to detect chloroamine in water. (EPA, 1998)